/* CSS reset */
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,button,textarea,p,blockquote,th,td{ margin: 0; padding: 0; }
fieldset,img{ border: 0; }
:focus{ outline: 0; }
address,caption,cite,code,dfn,em,strong,th,var,optgroup{ font-style: normal; font-weight: normal; }
h1,h2,h3,h4,h5,h6{ font-size: 100%; font-weight: normal; font-family: "Microsoft YaHei"; }
abbr,acronym{ border: 0; font-variant: normal; }
code,kbd,samp,tt{ font-size: 100%; }
input,button,textarea,select{ *font-size: 100%; border:none;}
body{ background:#fff; color:#5e5e5e; font: 14px/2em Microsoft YaHei,SimSun,Arial;}
ol,ul{ list-style: none; }
table{ border-collapse: collapse; border-spacing: 0; }
caption,th{ text-align: left; }
sup,sub{ font-size: 100%; vertical-align: baseline; }
:link, :visited, ins{ text-decoration: none; }
blockquote,q{ quotes: none; }
blockquote:before, blockquote:after, q:before, q:after{ content: ''; content: none; }
a:link, a:visited{ color: #5e5e5e;}
a:hover { color:#c9394a;}
a:active { color: #666;}
.clearfix:after{content:'\0020';display:block;height:0;clear:both;visibility:hidden;}
.clearfix{*zoom:1;}
.l{float:left;}
.r{float:right;}
.clear{ height:0; overflow:hidden; clear:both}
.hide{display:none;}
.btn.hide{display:none;}
a.hidefocus { outline: none; } 
button.hidefocus::-moz-focus-inner { border:none; } 
a:focus {outline:none;-moz-outline:none;} 
input,textarea {outline:none;} 
h2 { font-size: 20px; }
h3 { font-size: 16px; line-height: 32px; }
h5 { font-size: 14px; line-height: 28px; }
/*border && padding*/
.img_border { border: 4px solid #fff; border-radius: 1px;}
.bb { border-bottom: 1px solid #d2d2d2 }
.bt { border-top: 1px solid #d2d2d2 }
.pt15 { padding-top: 15px; }
.pb15 { padding-bottom: 15px; }
.p15{ padding:0 15px}
/*棰滆壊瀹氫箟*/
.color-gray,a.color-gray:link,a.color-gray:visited{color:#b7bcc0;}/*Layout*/
html { overflow-y: scroll; }
.container {
    margin: 0 auto;
    /*width: 1000px;*/
    width: 1000px;
}

.container1000{
	margin: 0 auto;
    width:1000px;
	background:#fff
	}


#main .container {
    /*width: 1000px;*/
    /*background:#fff;*/
}


/*main*/
#main {
    padding: 20px 0 !important;
    min-height:750px;

}


.waper{
    width:980px;
    margin: 0 auto
}

/*header*/
#header { 
    font-family:'寰蒋闆呴粦';
    background:#2a2c2e;
    height:60px}


.header-container { 

    width:100%}

.header-content { 

    width:95%;
    max-width:980px;
    margin:0 auto ;
    overflow:hidden}

#logo { 
    background:url(../img/logo_index.png?t=110);
    width:100px;
    height:60px;
    left:10px;
    top:0;
    position:absolute}

#logo a{
    display:block;
    width:100px;
    height:60px;
    line-height:60px;
    text-indent:-200%;
    overflow:hidden;
    }
#logo a:active{background:url(../img/logo_index.png?t=10);}
    #nav{ height:60px;
        /*width:980px;*/
        margin:0 auto;
        background:#2a2c2e;
        position:relative;
        z-index:99
 }	

#nav-item {
    margin: 5px 0 0 140px;
}
#nav-item li{ 
    float:left;
    font-size: 14px;
	padding:12px 0
}	
#nav-item a { 
    color: #B5BDC0;
    padding: 0px 35px;
	line-height:21px;
    display:block;
 }
 #nav-item a:hover{ color:#fff} 
 #nav a:hover { 
     text-shadow:1px 1px 3px #666}
	  #nav-item a:active {
		  background: #2A2C2E
		  }
#MyCourseOn a{ border-left:1px solid #414345}
 #login-area{
     float:right;
     position:relative;
    }

        /*footer*/
        #footer { 
            background:#444546;
            border-top:1px solid #e2e4e6;
            padding-top:23px;
            font-size:12px;
            color:#8e999d;
            line-height:1.6;
            padding-bottom:27px;
            padding-top:27px;
            min-width: 980px;
}
#footer div,#footer p{
    line-height:1.6;
}
#footer a:link,#footer a:visited { 
    color:#8e999d }
#footer a:hover { 
    color:#fff
}
#footer a:active { 
    background: #2A2C2E
}


#footer ul { 
    overflow:hidden;
}

#footer .des { 
    width:445px;
}


#footer .attention a { 
    float:left;
    background:url(../img/gotoTop.png) no-repeat;
    width:32px;
    height:32px;
    overflow:hidden;
    text-indent:-99em;
    margin-right:11px;
    margin-top:15px;
    opacity:0.5;
    filter:alpha(opacity=50)
}

#footer .attention a:hover { 
    opacity:1;
    filter:alpha(opacity=100)
}
#footer #qzone { 
    background-position:0 -96px
}
#footer	#sinaweibo { 
    background-position:-48px -96px}
#footer #qqweibo { 
    background-position:-96px -96px}
#footer #weixin { 
    background-position:-115px -30px
}
.friend-links{/*padding-top: 20px ;border-top:1px solid #4F5153;*/line-height:60px}
.friend-links a{display:inline-block;margin-right: 20px;}
.friend-links a:hover{text-decoration: underline;color: #000;}
.friend-links dl{ padding:0 10px}
.friend-links dd{ float:left; width:160px;}

.footerwaper{ overflow:hidden; padding-bottom:20px}
#footer .footer_intro ,#footer .footer_link ,#footer .attention { 
	margin-top:25px;
    float:left;
	height:110px;
}
#footer .footer_intro{ line-height:24px; border-right:1px solid #4f5153; width:395px; padding-left:10px}
#footer .footer_link { padding:0 50px; width:230px; border-right:1px solid #4f5153;}
#footer .footer_link ul{ padding-top:8px}
#footer .footer_link li{ width:115px; text-align:center; float:left; padding:2px 0}

#footer .attention{padding:0 0px 0 65px; height:98px}

/*缈婚〉2013-8-15*/ 
.page {
    margin: 25px 0 auto;
    overflow: hidden;
    clear: both;
    text-align: center;
}
.page a {
    display: inline-block;
    border: 1px solid #c1c1c1;
    margin-right: 10px;
    font-size: 14px;
    font-family: "寰蒋闆呴粦";
    color: #b1b1b1;
    text-align: center;
    padding: 2px 12px;
}
.page .disabled_page {
    color: #e5e5e5;
    display: inline-block;
    border: 1px solid #c1c1c1;
    margin-right: 10px;
    font-size: 14px;
    font-family: "寰蒋闆呴粦";
    text-align: center;
    padding: 2px 12px;
}
.page .notmargin {
    margin-right: 0;
}
.page a:hover {
    color: #c9394a;
}
.page .active {
    background: #c9394a;
    color: #fff;
    border-color:#c9394a;
}
.page .active:hover{
    color:#fff;
}
/*鎸夐挳瀹氫箟寮€濮�*/
.btn,a.btn {
    cursor:pointer;
    border: none;
    background: #c9394a;
    color: #ffffff;
    padding: 0 15px ;
    font-size:14px;
    display:inline-block;
    -webkit-transition: 0.25s;
    -moz-transition: 0.25s;
    -o-transition: 0.25s;
    transition: 0.25s;
    font-family:'寰蒋闆呴粦';
    margin:0;
    height:26px;
    overflow:visible;
    line-height:26px;
    text-decoration:none
}
.btn:hover,
.btn:focus{
    background: #e35061;
    color: #fff;
    outline: none;
    -webkit-transition: 0.25s;
    -moz-transition: 0.25s;
    -o-transition: 0.25s;
    transition: 0.25s;
}
.btn:active,
.btn-group.active,
.btn.active {
    background-color: #a1a6a9;
    color: rgba(255, 255, 255, 0.75);
}
.btn.disabled,
.btn[disabled] {
    background-color: #ddd;
    color:#fff;
    cursor: not-allowed
}
.btn.btn-small {
    font-size:12px;
    height:19px;
    line-height:19px;
    font-family:Arial, Helvetica, sans-serif
}

.btn.btn-large {
    height:38px;
    line-height:38px;
    overflow:visible;
    font-size:18px;
    padding: 0 30px;
	color: #ffffff;

}

.btn.btn-xlarge {
    height:60px;
    line-height:60px;
    overflow:visible;
    font-size:36px;
    padding: 0 30px;
}
.btn.btn-reply {
    font-size: 12px;
    height:30px;
    line-height: 30px;
    font-family: Arial, Helvetica, sans-serif
}
.btn.btn-gray {
    background-color: #5e5e5e;
}
.btn.btn-gray:hover,
.btn.btn-gray:focus{
    background:#838383
}

.btn.btn-green{
	background-color:#2e943e
	}
.btn.btn-green:hover,
.btn.btn-green:focus{
    background:#38a149
}
.btn-close,a.btn-close{
    width:25px;
    height:25px;
    border:0;
    display:inline-block;
    -moz-transition: all 0.2s ease-in;
    -webkit-transition: all 0.2s ease-in;
    -o-transition: all 0.2s ease-in;
    transition: all 0.2s ease-in;
    cursor:pointer;
    text-indent:-200%;
    overflow:visible;
    background-color:#ccc;
    background:url() center center;
}
.btn-close:hover,a.btn-close:hover{
    transform:rotate(180deg); 
    -moz-transform:rotate(180deg);
    -webkit-transform:rotate(180deg);

}
.btn-close:active,a.btn-close:active{
    filter:alpha(opacity=60);
    opacity:60

}

.btn-list{
    width:101px;
    height:42px;
    border:1px solid #c9394a;
    background:#c9394a;
    color:#fff;
    text-align:center;
    line-height:42px;
    font-size:18px;
}
a.btn-hascourse{
    width:101px;
    height:42px;
    border:1px solid #c9394a;
    background:#c9394a;
    color:#fff;
    text-align:center;
    line-height:42px;
    font-size:18px;
}
a.btn-hascourse:hover{background:#f05e6f;border:1px solid #f05e6f;}
.btn-list-gray{
    width:101px;
    height:42px;
    border:1px solid #b1b1b1;
    background:#b3bbbe;
	 color:#fff;
    text-align:center;
    line-height:42px;
    font-size:18px;
}
/*鎸夐挳瀹氫箟缁撴潫*/

select{
    margin:0;
    font-size:100%;
    cursor:pointer;
    font-weight:normal;
    background-color:#fff;
    border:1px solid #ccc;
    color: #555;
    display: inline-block;
    font-size: 14px;
    height: 30px;
    line-height: 30px;
    padding: 4px 6px;
    vertical-align: middle;
}
select:focus{
    outline:thin dotted #333;
    outline:5px auto -webkit-focus-ring-color;
    outline-offset:-2px;
}

/*鏀惰棌*/

.btn-add-collection{
    float: left;
    margin-left:20px;
    margin-top:5px;  
    overflow: hidden;
    padding-left:25px; 
    width: 0px;
    height: 20px;
    line-height: 20px;
    color: #99a1a6;
    font-size: 12px;
    font-weight: normal;
    display: inline-block;
    background: url(../img/course/dot_add_collection.png) no-repeat left top;
}
.btn-add-collection:hover{
    width: 80px;
    color: #99a1a6;
    background-position: left -20px;
}

.btn-remove-collection{
    background-position: left -40px;
}
.btn-remove-collection:hover{
    background-position: left -60px;
}
.course-title .btn-add-collection{
    margin-top: 6px;
}
.videohead .btn-add-collection{
    margin-top: 20px;
}

/*杩涘害鏉�*/

progress{ 
    display:inline-block;
    background:#f0f0f0; 
    border:0;
    height:6px;
    color: #c9394a; /*IE10*/
    width:400px;
}
progress::-webkit-progress-bar { background: #f0f0f0; }
progress::-moz-progress-bar { background: #aad94a; }
progress::-webkit-progress-value  { background: #aad94a; }
.progress{
    background:#f0f0f0; 
    height:6px;
    width:400px;
    display:inline-block;
}
.progressBar{
    background: #aad94a;
    height:6px;
}
.teacher-icon { width: 7px; margin-left:5px; position: relative; top:1px; }	
/*鍥炲埌椤堕儴*/
/*淇敼鍥炲埌椤堕儴鍜宖ooter鏍峰紡  ---by 鏉ㄦ槑闃�  2014.3.36*/
.gotoTopBtn{display:block; position:fixed;width:40px;bottom:25px; left: 50%; margin-left: 510px;}

.gotoTopBtn a:hover,.gotoTopBtn a:active { 
  outline: none;
  -webkit-transition: 0s;
  -moz-transition: 0s;
  -o-transition: 0s;
  transition: 0s;}
  
.goto_top,
.goto_top_backMeg,
.goto_top_diaocha,
.goto_top_app{ 
    cursor:pointer;
    width:48px;
    height:48px;
     background:url(../img/gotoTop.png?2) no-repeat 0 0; 
     _background:url(../img/gotoTop.gif) no-repeat 0 0; 
     display: inline-block;
     margin-top:10px;
 }



.goto_top{ background-position:0 0;}
.goto_top:hover{  background-position:0 -48px;}

.goto_top_backMeg{background-position:-48px 0;}
.goto_top_backMeg:hover{background-position:-48px -48px;}

.goto_top_diaocha{background-position:-144px 0;}
.goto_top_diaocha:hover{background-position:-144px -48px;}

.goto_top_app{background-position:-96px 0;position:relative;}
.goto_top_app:hover{background-position:-96px -48px;}
.goto_top_app:hover #erweima{
    display:block;

}
#erweima{
    position:absolute;
    background:url(../img/2weima.png) no-repeat;
    width:240px;
    height:220px;
    display:none;
    right:46px;
    top:-86px
}

* html .gotoTopBtn {position:absolute;bottom:auto;top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-(parseInt(this.currentStyle.marginTop,10)||0)-(parseInt(this.currentStyle.marginBottom,10)||0)));}

/* html,* html body /* 
淇IE6鎸姩bug */{background-image:url(about:blank);    /*鐢ㄦ祻瑙堝櫒绌虹櫧椤甸潰浣滀负鑳屾櫙*/ background-attachment:fixed; /* prevent screen flash in IE6 纭繚婊氬姩鏉℃粴鍔ㄦ椂锛屽厓绱犱笉闂姩*/}
/* end 鍥炲埌椤堕儴*/


a {outline: none;}
a:active {star:expression(this.onFocus=this.blur());}
a,input,button{ outline:none; }
button::-moz-focus-inner{border:0px;}
input::-moz-focus-inner{border:0px;}
.autowrap{word-wrap: break-word; word-break:break-all}

.compatible-contianer{
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    min-width: 800px;
    height: 30px;
    line-height: 30px;
    background: url(../img/iebg.gif) repeat-x;
    z-index: 999999;
}
.cpt-ct{
    color: #363636;
    font-size: 12px;
    text-align: center;
}
.cpt-ct i{
    display: inline-block;
    width: 12px;
    height: 14px;
    vertical-align: -2px;
    margin-right: 5px;
    background: url(../img/iefixed-sprite.png) no-repeat 0 0;
}
.cpt-ct a{
    color: #39b94e;
}
.cpt-ct a:hover{
    text-decoration: underline;
}
.cpt-handle{
    position: absolute;
    right: 20px;
    top: 0;
    font-size: 12px;
    line-height: 27px;
}
.cpt-handle a{
    display: inline-block;
    vertical-align: middle;
}
.cpt-handle .cpt-agin{
    color: #656e73;
    margin-right: 5px;
}
.cpt-handle .cpt-agin:hover{
    color:#363d40; 
}
.cpt-close{
    width: 16px;
    height: 16px;
    text-align: center;
    line-height: 16px;
    border-radius: 50%;
    transition: 0.3s;
}
.cpt-close:hover{
    background-color: #fc8800;
}
.cpt-close i{
    display: inline-block;
    height: 8px;
    width: 8px;
    vertical-align: 1px;
    background: url(../img/iefixed-sprite.png) no-repeat 0 -24px;
} 
.cpt-close:hover i{
    background-position: 0 -42px;
}body { 
  font-family: "Helvetica Neue", "Hiragino Sans GB", "Segoe UI", "Microsoft Yahei", "寰蒋闆呴粦", Tahoma, Arial, STHeiti, sans-serif;
}
.hide-text{
  text-indent: 100%;
  white-space: nowrap;
  overflow: hidden;
}
.idx-minwidth{
  min-width:1200px;
}
.header{
  position: relative;
  z-index: 10;
  height: 80px;
  top: -10px;
  opacity: 0;
  filter:alpha(opacity=0);
}
.header-wrap{
  position: relative;
  height: 80px;
  margin: 0 40px;
  padding: 0 30px;
  border-bottom: 1px solid #222526;
}
.logo-wrap{
  position: absolute;
  left: 30px;
  top: 20px;
  line-height: 1em;
}
.logo{
  display:block;
  height: 43px;
  width: 119px;
  overflow: hidden;
  background:url(../img/idx-logo.png) no-repeat 0 0;
}
.header-mid{
  width: 100%;
  text-align: center;
}
.header-right{
  position: absolute;
  right: 0;
  top: 0;
  *width: 400px;
}
.header-mid li{
  display: inline-block;
  *display: inline;
  *zoom:1;
  margin: 0 10px;
  white-space: nowrap;
}
.header-right-item{
    margin: 0 10px;
    float: left;
}
.header-mid a,
.header-mid a:visited,
.header-right-item > a,
.header-right-item > a:visited{
  display: block;
  height: 80px;
  font-size: 14px;
  line-height: 80px;
  padding: 0 10px;
  transition:0.3s;
  color: #656e73;
  border-bottom: 1px solid #222526;
}
.header-mid a:hover,
.header-mid a:active,
.header-right-item > a:hover,
.header-right-item > a:active{
  color: #fff;
  border-color:#be3948;
}

.header-app-icon{
  display: inline-block;
  width: 11px;
  height: 16px;
  background: url(../img/head-app-icon.png) no-repeat 0 0;
  vertical-align: -3px;
  margin-right: 5px;
  transition: .3s;
  -moz-transition: .3s;
  -webkit-transition: .3s;
  -o-transition: .3s;
}
.header-right-item a:hover .header-app-icon{
  background-position: 0 -16px;
}
.header-message{
  position: relative;
}
.header-message b{
  display: inline-block;
  vertical-align: middle;
  width: 20px;
  height: 18px;
  background: url(../img/imc.png) no-repeat 0 -28px;
}
.header-message:hover b{
  background-position: 0 0;
}
.header-message .msg_icon{
  -webkit-text-size-adjust:none;
  line-height: 16px;
  left: 21px;
  top: 20px;
}
.header-user{
  position: relative;
}
.header-user-avator img{
  border-radius: 50%;
  vertical-align: middle;
}
.header-user #nav_list{
  top: 80px;
}
#nav_list li a:hover{

}
#main{
  display:;
}
html,
body{
  height: 100%;
  width: 100%;
  min-width: 1200px;
}
.idx-width{
  width: 1200px;
  margin: 0 auto;
}
.band{
  position: relative;
	height:100%;
  min-height: 650px;
  overflow: hidden;
  margin-top: -81px;
  background-color: #000;
}
.band-bg{
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  opacity: 0;
  filter:alpha(opacity=0);
  background:url(../img/band-bg.jpg) no-repeat center 0;
}
html,body{
	width:100%;
	height:100%;
}
.band-wrap{
  position: relative;
  z-index: 9
}
.band-inner{
  position: absolute;
  top:340px;
  opacity:0;
  filter:alpha(opacity=0);
  right:40px;
  text-align: right;
}
.band-title{
  width: 644px;
  height: 147px;
  background: url(../img/main-text.png) no-repeat;
}
.band-video{
  margin-top: 30px;
}
.band-video span{
  display: inline-block;
  padding-right: 18px;
  height: 16px;
  line-height: 16px;
  font-size: 18px;
  color: #cecece;
  cursor: pointer;
  background: url(../img/play-icon.png) no-repeat right 0;
  transition: .1s;
  -moz-transition: .1s;
  -webkit-transition: .1s;
  -o-transition: .1s;
}
.band-video span:hover{
  padding-right: 20px;
}
.band-btn{
  padding: 30px 0;
}
.band-btn a{
  display: inline-block;
  height: 80px;
  width: 240px;
  line-height: 80px;
  text-align: center;
  font-size: 30px;
  color: #fff;
  border-radius: 50px;
  transition: .15s;
  -moz-transition: .15s;
  -webkit-transition: .15s;
  -o-transition: .15s;
  background:#a32929 url(../img/begin-text.png) no-repeat center center;
}
.band-btn a:hover{
  background-color: #cc3333;
}
.video-container{
  position: fixed;
  left:0;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  display: none;
}
.video-wrap{
  position:absolute;
  top: 50%;
  left: 50%;
  margin-top: -250px;
  margin-left: -400px;
  width: 800px;
  height: 500px;
  z-index: 10001;
}
.video-mask{
  position: absolute;
  top: 0;
  left:0;
  bottom: 0;
  right: 0;
  background-color: #000;
  opacity: 0.8;
  filter:alpha(opacity=80);
  z-index: 10000;
}
.video-close{
  position: absolute;
  right: 40px;
  top: 40px;
  width: 58px;
  height: 58px;
  cursor:pointer;
  background:url(../img/index-close.png) no-repeat;
  z-index: 10001;
}
.video-close:hover{
  background-position: 0 -68px;
}

.bg-grey{
  background-color: #eef1f2;
}
.bg-white{
  background-color: #fff;
}
.characters{
  background-color: #fff;
}
.characters-wrap{
  position: relative;
  padding: 50px 120px;
  height: 183px;
}
.char-icon1{
  position: absolute;
  left: 120px;
  top: 60px;
  opacity: 0;
  filter:alpha(opacity=0);
  width: 135px;
  height: 183px;
  background: url(../img/char-icon1.png) no-repeat center center;
}
.char-icon3{
  position: absolute;
  top: 65px;
  right: 120px;
  opacity: 0;
  filter:alpha(opacity=0);
  width: 166px;
  height: 181px;
  background: url(../img/char-icon3.png) no-repeat center center;
}
.char-icon2{
  position: absolute;
  top: 60px;
  left: 50%;
  margin-left: -90px;
  opacity: 0;
  filter:alpha(opacity=0);
  width: 180px;
  height: 181px;
  background: url(../img/char-icon2.png) no-repeat center center;
}
.intro1-wrap{
  position: relative;
  height: 400px;
  z-index: 1;
}
.intro1-star{
  position: absolute;
  width: 581px;
  height: 431px;
  top: -20px;
  left: -15px;
  opacity: 0;
  z-index: 10;
  filter:alpha(opacity=0);
  background: url(../img/01-star.png) no-repeat 0 0 ;
}
.intro1-video{
  position: absolute;
  width: 581px;
  height: 431px;
  bottom: -30px;
  left: -15px;
  opacity: 0;
  z-index: 9;
  filter:alpha(opacity=0);
  background: url(../img/01-video.png) no-repeat 0 0;
}
.intro1-text{
  position: absolute;
  right: 105px;
  top: 164px;
  opacity: 0;
  filter:alpha(opacity=0);
  width: 493px;
  height: 70px;
  background: url(../img/01-text.png) no-repeat 0 0 ;
}
.intro2{
  position: relative;
  z-index: 21;
}
.intro2-wrap{
  position: relative;
  height: 400px;
}
.intro2-text{
  position: absolute;
  top: 165px;
  left: 105px;
  width: 512px;
  height: 70px;
  opacity: 0;
  filter:alpha(opacity=0);
  background: url(../img/02-text.png) no-repeat;
}
.intro2-computer1,
.intro2-computer2{
  position: absolute;
  width: 580px;
  height: 430px;
  top: -30px;
  right: 0;
  opacity: 0;
  filter:alpha(opacity=0);
}
.intro2-computer1{
  background: url(../img/02-computer1.png) no-repeat center 0;
  z-index: 9;
  top: 0;
}
.intro2-computer2{
  background: url(../img/02-computer2.png) no-repeat center 0;
  z-index: 10;
}
.intro3{
  position: relative;
  z-index: 31;
}
.intro3-wrap{
  position: relative;
  height: 400px;
  z-index: 3;
}
.intro3-text{
  position: absolute;
  width: 476px;
  height: 70px;
  right: 165px;
  top: 165px;
  opacity: 0;
  filter:alpha(opacity=0);
  background: url(../img/03-text.png) no-repeat;
}
.intro3-calendar,
.intro3-smoke,
.intro3-rockets{
  position: absolute;
  left:0;
  top: -1px;
  width: 581px;
  height: 431px;
  opacity: 0;
  filter:alpha(opacity=0);
}
.intro3-calendar{
  background: url(../img/03-calendar.png) no-repeat 0 0;
}
.intro3-rockets{
  top: 14px;
  background: url(../img/03-rockets.png) no-repeat 0 0;
}
.intro3-smoke{
  background: url(../img/03-smoke.png) no-repeat 0 0;
}
.intro4{
  position: relative;
  z-index: 41;
}
.intro4-wrap{
  position: relative;
  height: 400px;
  z-index: 4;
}
.intro4-text{
  position: absolute;
  width: 422px;
  height: 70px;
  top:165px;
  left: 146px;
  opacity: 0;
  filter:alpha(opacity=0);
  background: url(../img/04-text.png) no-repeat;
}
.intro4-hand,
.intro4-icon{
  position: absolute;
  right: 0;
  top: -30px;
  width: 581px;
  height: 430px;
}
.intro4-hand{
  z-index: 9;
  opacity: 0;
  top: 0;
  filter:alpha(opacity=0);
  background: url(../img/04-hand.png) no-repeat 0 0;
}
.intro4-icon{
  z-index: 10;
  opacity: 0;
  filter:alpha(opacity=0);
  background: url(../img/04-icon.png) no-repeat 0 0;
}
.dynamic{
  position: relative;
  z-index: 51;
}
.dynamic-wrap{
  position: relative;
  height: 200px;
  overflow: hidden;
  z-index: 5;
}
.dynamic-left,
.dynamic-right{
  position: absolute;
  width: 40px;
  height: 200px;
  top: 0;
  display: none;
  cursor:pointer;
  background: url(../img/index-sprite.png) no-repeat;
  z-index: 10;
}
.dynamic-left{
  left: 0;
  background-position: 0 0;
}
.dynamic-right{
  right: 0;
  background-position: right 0;
}
.dynamic-group{
  position: absolute;
  left: 0;
  right: 0;
}
.dynamic-group li{
  float: left;
  width: 400px;
  overflow: hidden;
}
.dynamic-group a{
  display: block;
  border-left: 1px solid #fff;
  opacity: 0.85;
  filter:alpha(opacity=85);
  transition:opacity 0.3s;
}
.dynamic-group a:hover{
  opacity: 1;
  filter:alpha(opacity=100);
}
.icourse-title{
  text-align: center;
  width: 64px;
  height: 31px;
  margin: 0 auto;
  font-size: 32px;
  padding: 40px 0 30px;
  line-height: 1em;
  background: url(../img/course-text.png) no-repeat center center;
}
.icourse-course li{
  position: relative;
  float: left;
  width: 280px;
  margin: 10px;
  height: 240px;
  background: #f7faf9;
  background: #f7faf9\0/;
  border-bottom: 2px solid #f7faf9\0/;
  border-radius: 0 0 1px 1px;
  box-shadow: 0 1px 2px #c5c5c5;
  transition: .3s;
  -moz-transition: .3s;
  -webkit-transition: .3s;
  -o-transition: .3s;
}
.icourse-img{
  position: relative;
  height: 160px;
  overflow: hidden; 
}
.icourse-img img{
  transition: .3s;
  -moz-transition: .3s;
  -webkit-transition: .3s;
  -o-transition: .3s;
  line-height: 1em;
}
.icourse-learnt{
  position: absolute;
  left: 0;
  right: 0;
  height: 10px;
  background-color:#39b94e;
  bottom: -19px;
  color: #fff;
  font-size: 12px;
  height: 24px;
  line-height: 24px;
  text-align: center;
  transition: .3s;
  -moz-transition: .3s;
  -webkit-transition: .3s;
  -o-transition: .3s;
}
.icourse-course li:hover{
  border-bottom: 2px solid #dae0e5\0/;
  box-shadow: 0 2px 8px #bbb;
}

.icourse-course li:hover img{
  transform: scale(1.2);
  -webkit-transform: scale(1.2);
}
.icourse-intro,
.icourse-tips{
  position: absolute;
  top: 160px;
  left:0;
  right: 0;
  padding: 0 14px;
  height: 78px;
  background:#fff;
  background:#f7faf9/;
  *background:#f7faf9;
  font-size:12px;
  transition:.3s;
  -moz-transition:.3s;
  -webkit-transition:.3s;
  -o-transition:.3s;
  z-index: 9;
}

.icourse-intro{
  opacity: 1;
  z-index: 10;
  display:none/;
  *display:none;
}
.icourse-intro span,
.icourse-tips span{
  color:#b4bbbf;
}
.icourse-tips h2,.icourse-intro h2{
  color:#363d40;
  line-height:50px;
  height: 50px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow:ellipsis;
  text-align:left;
  font-size: 14px; 
}
.icourse-intro p{
  padding-top:10px;
  height:40px;
  line-height:20px;
  overflow: hidden;
}
.icourse-course li:hover .icourse-intro{
  color:#656e73;
  opacity:1;
  display:block/;
  *display:block;
}
.icourse-course li:hover .icourse-learnt{
  bottom: 0;
}
.icourse-footer{
  padding: 40px 0 60px;
  text-align: center;
}
.icourse-footer a{
  display: inline-block;
  width: 118px;
  border-radius:50px;
  height: 38px;
  line-height: 38px;
  border: 1px solid #d0d6d9;
  font-size: 16px;
  color: #363d40;
  transition:.3s;
  -moz-transition:.3s;
  -webkit-transition:.3s;
  -o-transition:.3s;
}
.icourse-footer a:hover{
  background-color: #d0d6d9;
}

.Tcourse-course li{
  position: relative;
  float: left;
  width: 220px;
  margin: 10px;
  height: 180px;
  background: #f7faf9;
  background: #f7faf9\0/;
  border-bottom: 2px solid #f7faf9\0/;
  border-radius: 0 0 1px 1px;
  box-shadow: 0 1px 2px #c5c5c5;
  transition: .3s;
  -moz-transition: .3s;
  -webkit-transition: .3s;
  -o-transition: .3s;
}
.Tcourse-img{
  position: relative;
  height: 131px;
  overflow: hidden; 
}
.Tcourse-img img{
  width:220px;
  transition: .3s;
  -moz-transition: .3s;
  -webkit-transition: .3s;
  -o-transition: .3s;
  line-height: 1em;
}
.Tcourse-learnt{
  position: absolute;
  left: 0;
  right: 0;
  height: 10px;
  background-color:#39b94e;
  bottom: -19px;
  color: #fff;
  font-size: 12px;
  height: 24px;
  line-height: 24px;
  text-align: center;
  transition: .3s;
  -moz-transition: .3s;
  -webkit-transition: .3s;
  -o-transition: .3s;
}
.Tcourse-course li:hover{
  border-bottom: 2px solid #dae0e5\0/;
  box-shadow: 0 2px 8px #bbb;
}
/*
.Tcourse-course li:hover img{
  transform: scale(1.2);
  -webkit-transform: scale(1.2);
}
*/
.Tcourse-intro,
.Tcourse-tips{
  position: absolute;
  top: 131px;
  left:0;
  right: 0;
  padding: 0 7px;
  height: 49px;
  background:#fff;
  background:#f7faf9/;
  *background:#f7faf9;
  font-size:12px;
  transition:.3s;
  -moz-transition:.3s;
  -webkit-transition:.3s;
  -o-transition:.3s;
  z-index: 9;
}

.Tcourse-intro{
  opacity: 1;
  z-index: 10;
  display:none/;
  *display:none;
}

.Tcourse-tips .teachername{color:#666;font-weight:bold;}

.Tcourse-intro span,
.Tcourse-tips span{
  color:#b4bbbf;
}
.Tcourse-tips h2,.Tcourse-intro h2{
  color:#363d40;
  line-height:50px;
  height: 50px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow:ellipsis;
  text-align:left;
  font-size: 14px; 
}
.Tcourse-intro p{
  padding-top:10px;
  height:40px;
  line-height:20px;
  overflow: hidden;
}
.Tcourse-course li:hover .icourse-intro{
  color:#656e73;
  opacity:1;
  display:block/;
  *display:block;
}
.Tcourse-course li:hover .icourse-learnt{
  bottom: 0;
}


.family{
  position: relative;
  background: url(../img/family-bg2.png) repeat-x center center;
}
.family-item{
  position: relative;
  float: left;
  width: 200px;
  height: 200px;
}
.family-avator{
  line-height: 0;
}
.family-sub-item{
  position: relative;
  float: left;
  width: 100px;
  height: 100px;
}
.family-info{
  display: none;
  position: absolute;
  top: 0;
  bottom: 0;
  background-color:#be3948;
  left: 100%; 
  z-index: 12;
}
.family-info-t{
  width: 300px;
}
.family-info-s{
  width: 200px;
}

.family-info-right{
  right: 100%;
  left: auto;
}
.family-avator{
  position: relative;
  display: block;
}
.family-mask{
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  opacity: 0.6;
  filter:alpha(opacity=60);
  background-color: #a8acaf;
  transition:opacity .15s;
  -moz-transition:opacity .15s;
  -webkit-transition:opacity .15s;
  -o-transition:opacity .15s;
}
.family-avator:hover .family-mask{
  opacity: 0;
  filter:alpha(opacity=0);
}
.family-big-mask{
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  opacity: 0.60;
  filter:alpha(opacity=60);
  background-color: #edf1f4;
  z-index: 10;
}
.family-text{
  position: absolute;
  width: 238px;
  height: 46px;
  top: 50%;
  left: 50%;
  background: url(../img/family-text.png) no-repeat;
  margin: -23px 0  0 -119px;
  z-index: 11;
}
.family-teacher-nick{
  color: #fff;
  font-size: 20px;
  padding: 20px 20px 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow:ellipsis;
  line-height: 1em;
}
.family-student-nick{
  color: #fff;
  font-size: 16px;
  padding: 10px 20px 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow:ellipsis;
  line-height: 1em;
}
.family-info-job{
  font-size: 12px;
  color: #ec9ba4;
  height: 28px;
  overflow: hidden;
  padding: 0 20px;
}
.family-info-desc{
  padding: 20px 20px 0;
  line-height: 20px;
  height: 100px;
  color: #f2bcc2;
  font-size: 12px;
  overflow: hidden;
}
.family-info-foot{
  padding: 7px 20px 0;
  font-size: 12px;
  color: #ec9ba4;
  line-height: 1.3em;
}
.family-info-foot span{
  display: inline-block;
  width: 75px;
}
.family-info-foot em{
  display:block;
  color: #fff;
}

.mobile{
  background: url(../img/mobile-bg.png);
}
.mobile-wrap{
  position: relative;
  overflow: hidden;
  height: 580px;
}
.mobile-title{
  width: 347px;
  height: 31px;
  margin: 80px auto 0 auto;
  background: url(../img/phone-text.png) no-repeat 0 0;
}
.mobile-entry{
  text-align: center;
  padding: 40px;
}
.mobile-entry a{
  display: inline-block;
  width: 158px;
  height: 38px;
  line-height: 38px;
  border-radius: 50px;
  vertical-align: middle;
  color: #be3948;
  transition:.3s;
  -moz-transition:.3s;
  -webkit-transition:.3s;
  -o-transition:.3s;
  border:1px solid #be3948;
  margin: 0 10px;
}
.mobile-entry a:hover{
  color: #fff;
  background-color: #be3948;
}
.mobile-trigger{
  display: inline-block;
  width: 18px;
  height: 18px;
  vertical-align: middle;
  cursor:pointer;
  background: url(../img/index2-sprite.png) no-repeat 1px -27px;
}
.mobile-bg-wrap{
  position: absolute;
  bottom: -30px;
  left: 50%;
  margin-left: -300px;
  width: 600px;
  height: 360px;
  background: url(../img/mobile-bg1.png) no-repeat;
}
.mobile-bg2{
  position: absolute;
  width:184px;
  height: 216px;
  top: 190px;
  left: 209px;
  background: url(../img/mobile-bg2.png) no-repeat;
}
.mobile-bg3{
  position: absolute;
  width:140px;
  height: 140px;
  top: 173px;
  left: 230px;
  opacity: 0;
  filter:alpha(opacity=0);
  background: url(../img/mobile-bg3.png) no-repeat;
}
.mobile-trigger:hover{
  background-position: 0 0;
}
.joinmooc{
  height: 360px;
  overflow: hidden;
}
.joinmooc-wrap h1{
  width: 297px;
  height: 30px;
  background: url(../img/join-text.png) no-repeat;
  padding-top: 1px;
  margin: 110px auto 0;
}
.joinbtn{
  padding-top: 40px;
  text-align: center;
}
.joinbtn a{
  display: inline-block;
  height: 60px;
  line-height: 60px;
  width: 220px;
  border-radius: 50px;
  background: #be3948 url(../img/begin-text.png) no-repeat center center;
  color: #fff;
  font-size: 24px;
  transition: .3s;
  -moz-transition: .3s;
  -webkit-transition: .3s;
  -o-transition: .3s;
}
.joinbtn a:hover{
  background-color: #cb616d;
}
.footer-sns{
  padding-top: 30px;
  text-align: center;
}
.footer-sns a{
  display: inline-block;
  height: 32px;
  width: 32px;
  vertical-align: middle;
  background-image: url(../img/idx-btm.png);
  background-repeat: no-repeat;
  margin: 0 9px;
}
.footer-sns-weibo{
  background-position: 0 -221px;
}
.footer-sns-weixin{
  position: relative;
  background-position: -52px -221px;
}
.footer-sns-qqweibo{
  background-position: -104px -221px;
}
.footer-sns-qzone{
  background-position: -156px -221px;
}

.footer-sns-weibo:hover{
  background-position: 0 -262px;
}
.footer-sns-weixin:hover{
  background-position: -52px -262px;
}
.footer-sns-qqweibo:hover{
  background-position: -104px -262px;
}
.footer-sns-qzone:hover{
  background-position: -156px -262px;
}
.footer-sns-weixin i{
  position: absolute;
  display: none;
  width: 176px;
  height: 210px;
  background: url(../img/idx-btm.png) no-repeat 0 0;
  left:-72px;
  bottom:40px;
}
.footer-sns-weixin:hover i{
  display: block;
}
.footer-link{
  width: 900px;
  padding: 25px 0;
  margin: 0 auto;
  text-align: center;
  border-bottom: 1px solid #f4f7f8;
}
.footer-link a{
  margin: 0 10px;
  color: #99a1a6;
}
.footer-link a:hover{
  color: #be3948;
}
.footer-copyright{
  padding: 20px 0 25px;
  text-align: center;
  color: #b4bbbf;
}

.interact{float:left;padding:10px;width:810px;margin-bottom:10px;}
.interact li{float:left;width:379px;height:84px;padding:10px;margin:2px 2px 0 0;color:#fff;transition:0.3s;font-size:12px;}
.interact li:hover{opacity:.85;}
.interact li a{color:#fff;}
.interact li a:hover{text-decoration:underline;}
.interact li .question{font-size:16px;}
.interact li span{}
.interact li .stname{margin-right:10px;font-weight:bold;}
.interact li .class{font-size:12px;}
.interact li img{border-radius:22px;border:2px solid #fff;margin-top:5px;width:40px;height:40px;}
.interact li.curse01{ background:#e8891a;}
.interact li.curse02{ background:#d2656b;}
.interact li.curse03{ background:#338ee2;}
.interact li.curse04{ background:#62aead;}
.interact li.curse05{ background:#338ee2;}
.interact li.curse06{ background:#83c54f;}
.interact li.curse07{ background:#39b57f;}
.interact li.curse08{ background:#8b5aef;}
.interact li.curse09{ background:#bda355;}
.interact li.curse010{ background:#777777;}
.interact li.curse011{ background:#62aead;}
.interact li.curse012{ background:#e8891a;}
.interact li.curse013{ background:#5f7fc9;}
.interact li.curse014{ background:#f15f67;}

.Studying{}
.Studying h3{padding:20px 10px 10px 10px;font-size:28px;}
.studying{width:370px;height:277px;padding:20px 0 20px 0;background:#7e512a;margin-top:10px;transition:0.3s;}
.studying:hover{opacity:.95;}
.studying li{color:#fff;padding:0 10px;line-height:32px;}
.studying li:hover{}
.studying li h3{background:#555;padding:10px 20px 10px 20px;font-size:20px;font-weight:bold;opacity:0.85;}
.studying li a{color:#fff;font-weight:500}
.studying li a:hover{text-decoration:underline;}